使用php查询mysql数据库，以便使用morris.js绘图

我有一个mysql数据库，我想用这种格式查询。 注意：在真实数据集中，序列字段中有更多类别 因此，aswer应该能够处理数量未知的类别。在这种情况下，只有两个类别：许可和排序

period          series      values
1349046000000   licensed    3407        
1349046000000   sorned      660
1313103600000   licensed    3351   
1313103600000   sorned      629

我找不到使用php将此表转换为 morris.js库要求的格式。例如： 此后

这是我试图编写的php代码，但它输出了错误的格式，它只是表。库的所需输出应将每个序列作为宽格式的列

<?php

mysql_connect("localhost","root","martin");
mysql_select_db('table');
$query = "select UNIX_TIMESTAMP(period) * 1000 as period, series, values from table";
$result = mysql_query($query);

$data = array();

while($data[] = mysql_fetch_assoc($result));
echo json_encode($data);
?>

---

你能控制数据库的设计吗？这是一个非常糟糕的设置

如果您能够像这样设置数据库：

period          licensed    sorned
1349046000000   3407        660
1313103600000   3351        629

然后，您可以适当地提取数据：

$query = "select UNIX_TIMESTAMP(period) * 1000 as period, licensed, sorned from table";

---

下面是php中的解决方案，它可以将表透视到morris.js图表中

<?php
mysql_connect("localhost","root","martin");
mysql_select_db('table');

// First query the fields of the pivot table
$query_fields = "SELECT series dominio from table";
$result_fields = mysql_query($query_fields);

$var = array();
while ($row = mysql_fetch_assoc($result_fields)) {
    $var[] = $row['series'];
}

// Here i write the "pivot" query dinamically
foreach($var as $i){
    $query2 .= ",MAX(CASE WHEN series = '$i' THEN values END) as $i";
}

$query1 = "SELECT period ";
$query3 = " FROM
            table
            group by 1";

$query_pivot = $query1 . $query2 . $query3;
$result_pivot = mysql_query($query_pivot);

$output = array();
while($row = mysql_fetch_assoc($result_pivot)){
    $output[] = $row;
}

//print_r($output);
echo json_encode($output);
?>

现在，使用ajax调用，我可以让morris.js来绘制这张图

<?php
mysql_connect("localhost","root","martin");
mysql_select_db('table');

// First query the fields of the pivot table
$query_fields = "SELECT series dominio from table";
$result_fields = mysql_query($query_fields);

$var = array();
while ($row = mysql_fetch_assoc($result_fields)) {
    $var[] = $row['series'];
}

// Here i write the "pivot" query dinamically
foreach($var as $i){
    $query2 .= ",MAX(CASE WHEN series = '$i' THEN values END) as $i";
}

$query1 = "SELECT period ";
$query3 = " FROM
            table
            group by 1";

$query_pivot = $query1 . $query2 . $query3;
$result_pivot = mysql_query($query_pivot);

$output = array();
while($row = mysql_fetch_assoc($result_pivot)){
    $output[] = $row;
}

//print_r($output);
echo json_encode($output);
?>